For further analysis, it may be that an error is written to your /var/log/syslog file at the time of the freeze. After your system freezes note the time of the freeze. Wait a few minutes, then reboot (so you know for sure which parts of the logfile are from the freeze and which from after your reboot). Then open your /var/log/syslog file in a text editor or log viewer, and scroll down to the timestamp of your freeze. See if there are any errors reported there.

Edit: almost forgot. In the GRUB menu you can always choose to boot with a previous version of the kernel, if the one you installed is giving problems. If your GRUB menu isn't being shown by default during boot, hold down the Shift key during boot to get it to show.

Vincent Vermeulen wrote:@Roland, @alexdowad, with you both having an Ivy Bridge series processor that could be related. I'd recommend trying a newer kernel than the 3.2 series which you get from the repositories.

To others reading this topic: unless you have similar hardware as OP (Intel Ivy Bridge CPU & GPU) please create a new topic for your problem, and don't post it to this topic. Though symptoms may be similar, unless you have similar hardware the root cause is most likely something else (specific to your hardware).

That looks like the beginning of the syslog1 file. Can you post the last part? Just the last 200 lines before the freeze should cover enough information, if there is any to be found. Or compress the file, and you can upload the entire file as attachment.

Vincent Vermeulen wrote:That looks like the beginning of the syslog1 file. Can you post the last part? Just the last 200 lines before the freeze should cover enough information, if there is any to be found. Or compress the file, and you can upload the entire file as attachment.

No, it is the last part! I was away a few minutes, came back and the pc was frozen, so the problem could have been a little bit earlier.

Well, I can't find anything obvious in the log file. I had problems with Sandy Bridge, and it was logging warnings and errors before it froze. I'd recommend to try the 3.4 or 3.5 series kernel, as a lot of improvements for Ivy Bridge have been done on those.

as i see it you have 2 options:- if you want to stick with maya (after all it's a LTS) you should follow Vincent post above regarding update the kernel;- the upcoming mint14 (should be released most probably this month - it's at the moment in testing) will bring a new kernel (3.5.x) where this issue is already addressed.

as i see it you have 2 options:- if you want to stick with maya (after all it's a LTS) you should follow Vincent post above regarding update the kernel;- the upcoming mint14 (should be released most probably this month - it's at the moment in testing) will bring a new kernel (3.5.x) where this issue is already addressed.

Thanks for the answer,Yes I want to stay with Mint.I did try many distro and Mint cinnanmon is my favorite.

I will read a second time what I have to do to upgrade the kernel.I began with Linux last march, I'm not and expert....

Vincent's method to update the kernel did not work yet, I still have the same kernel installed although I followed his advice. Probably I made a mistake somewhere due to inexperience; I think I will try this tonight: